Polishing pad



FIG. 1 is a perspective view of a polishing pad;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a top plan view thereof.

The broken line depicting an inner ring and hole of a polishing pad is for illustrative purposes and is not part of the claimed design. 

CLAIM The ornamental design for a polishing pad, as shown and described. 